Re: Device page

To: Masao Uebayashi <uebayasi%tombi.co.jp@localhost>
Subject: Re: Device page
From: Eduardo Horvath <eeh%NetBSD.org@localhost>
Date: Sat, 6 Feb 2010 22:55:02 +0000 (UTC)

On Sun, 7 Feb 2010, Masao Uebayashi wrote:

> > This will break mchines that store additional information such as 
> > cacheing in the physaddr_t.
> 
> Could you be more specific?  The only instance accessing phys_addr member I 
> can find is:
> 
> sys/arch/arm/include/arm32/vmparam.h:   (pg)->mdpage.pvh_attrs = 
> (pg)->phys_addr & arm_cache_prefer_mask

ISTR sparc64 used bits in the physaddr_t for frambuffer mappings.

Eduardo

Follow-Ups:
- Re: Device page
  - From: Martin Husemann

References:
- Re: Device page
  - From: Matt Thomas
- Re: Device page
  - From: YAMAMOTO Takashi
- Re: Device page
  - From: Matt Thomas
- Re: Device page
  - From: Masao Uebayashi
- Re: Device page
  - From: Masao Uebayashi
- Re: Device page
  - From: Eduardo Horvath
- Re: Device page
  - From: Masao Uebayashi

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